<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
    <style>
        h1{
            width: 200px;
            height: 200px;
            border: 5px solid red;
            box-shadow: 10px 5px 5px green;
        }
    </style>
</head>

<body>
    <h1></h1>
</body>
</html>